The Kestrel 3000 Pocket Weather Meter is the handheld weather-monitoring device that provides a wide range of functions, plus accurate relative humidity measurements. Before the Kestrel 3000 came along, the technology required to gather this information would require masses of equipment – but not anymore. The Kestrel 3000 Weather Meter measures essential environmental parameters like temperature and wind speeds, and has added advantages for professionals who need access to humidity and heat stress readings.